| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily dissolve the deviation of a read position while reducing degradation of image quality of image data of respective color components. <P>SOLUTION: A line sensor has a width for a reference line distance of the result of multiplying a line cycle with a reference moving speed and is arranged in parallel adjacently to a sub-scanning direction. When receiving an instruction to switch the moving speed of an image read part to a prescribed high moving speed, in original read processing, a read control part defines the point of time at which a period for which the result (high speed read time lighting cycle) of dividing the line cycle by the result (moving speed ratio) of dividing the high moving speed by the reference moving speed from the line cycle elapses as the point of time of starting lighting, and lights a light emitting element with intensity multiplied by the moving speed ratio during the high speed read lighting cycle. An image data composition part delays image data of two sensors from the head by one line and composite it with the image data of the third sensor in the case that the moving speed ratio is equal to or larger than 1 and smaller than 3, and composites them without delaying any in the case that the moving speed ratio is equal to or larger than 3. <P>COPYRIGHT: (C)2012,JPO&INPIT |
